Supersized alcopops are ready-to-drink flavored alcoholic beverages that have up to five times the alcohol content of beer and appear to be marketed toward young drinkers. A new study found that calls to U.S. poison control centers for supersized alcopops disproportionately involved underage drinkers compared to calls for other alcohol products. Better regulation of their alcohol content and retail availability is urgently needed to protect youth, experts say.